消化道出血介紹ppt課件-文庫吧資料
2025-01-11 12:50本頁面
【正文】 l Character of melena is due to degradation of blood to hematin or other hemochromes by bacteria Instillation of 50 to 100 mL of blood into the stomach is required to produce melena consistently, tests for fecal occult blood bee positive when about 5 mL is lost per day Hematochezia Refers to passage of bright red blood from the rectum that may or may not be mixed with stool It is happen when patients have gastro intestinal lesions that bleed massively Symptoms of blood loss Including lightheadedness。 thrombocytopenic purpura ? Uremia ? Connective Tissue Diseases: polyarteritis nodosa。 Crohn’s disease。 Duodenal diverticulitis。 Gastritis after operation。s Lesion)。 Neurofibromatosis。 ZollingerEllison Syndrome。 Gastric cancer。 radioactive Duodenal and Gastric Diseases Gastric Ulcer。Gastrointestinal Hemorrhage 消化道出血 消化道以屈氏韌帶 (the ligament of Treitz)為界，其上的消化道出血稱上消化道出血，其下的消化道出血稱為下消化道出血 Supper Gastrointestinal Hemorrhage 上消化道出血 Etiology Upper gastrointestinal bleeding is most monly caused by peptic ulceration, gastroesophageal varices, acute erosive and hemorrhagic gastritis, and gastric cancer 病因 消化性潰瘍 食管胃底靜脈曲張破裂 急性糜爛出血性胃炎 胃癌 最常見 Etiology Esophageal Diseases Duodenal and Gastric Diseases Portal HypertensionRelated Causes Hemobilia Hemosuccus Pancreaticus Systemic Diseases Esophageal Diseases 1. Esophagitis 2. Esophageal ulceration 3. Tumor of the esophagus 4. Esophagus diverticulitis 5. Esophagus injury: physical (MalloryWeiss Tear)。 chemical (strong acid or alkali)。 Acute erosive and hemorrhagic gastritis。 Gastric polyp。 MALToma。 Gastric vascular abnormity (Vascular Ectasia, Arteriovenous Malformations, Dieulafoy39。 Prolapse of gastric mucosa。 stoma ulcer Duodenal Ulcers。 Acute erosive duodenitis。 Duodenal tuberculosis Portal HypertensionRelated Causes 1. Esophageal varices 2. Gastric varices 3. Portal hypertensive gastropathy Hemobilia Including trauma, gallstones, cholecystic carcinoma, cholangiocarcinoma, a
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